EP 1012653 A1 20000628 - OPTICAL TRANSMITTER FOR EMITTING LIGHT SIGNALS
Title (en)
OPTICAL TRANSMITTER FOR EMITTING LIGHT SIGNALS
Title (de)
OPTISCHER SENDER ZUM AUSSENDEN VON LICHTSIGNALEN
Title (fr)
EMETTEUR OPTIQUE POUR L'EMISSION DE SIGNAUX LUMINEUX
Publication
Application
Priority
- DE 19740243 A 19970912
- EP 9805769 W 19980910
Abstract (en)
[origin: WO9914624A1] The invention relates to an optical transmitter for emitting light signals, especially for simultaneously activating light signal receivers present within a spatial range. Said optical transmitter has a laser diode (10) and an optical transmitting system. Said laser diode (10) emits an especially pulsed, concentrated laser beam (14). The optical transmitting system has a Fresnel mirror (12) and a primary mirror (15) whose convex mirror surface (151) is turned towards the mirror surfaces (121) of the Fresnel mirror (12). This enables the transmitter to illuminate as large a solid angle as possible, and gives a compact, robust structure. The laser diode (10) is located in the centre of the Fresnel mirror (12), coaxial to the axis of the Fresnel mirror (12) and the primary mirror (15) in the direction of emission (13) of the laser diode (10) and at a distance in front of and coaxial to the exit aperture (11).
IPC 1-7
IPC 8 full level
G02B 5/09 (2006.01); G02B 13/06 (2006.01); G02B 17/06 (2006.01)
CPC (source: EP)
G02B 5/09 (2013.01); G02B 13/06 (2013.01); G02B 17/061 (2013.01)
Citation (search report)
See references of WO 9914624A1
Designated contracting state (EPC)
GB IT NL PT SE
DOCDB simple family (publication)
WO 9914624 A1 19990325; AT E229733 T1 20020715; DE 19740243 C1 19990211; DK 1012653 T3 20021028; EP 1012653 A1 20000628; EP 1012653 B1 20020703; ES 2177067 T3 20021201; PT 1012653 E 20021129
DOCDB simple family (application)
EP 9805769 W 19980910; AT 98950019 T 19980910; DE 19740243 A 19970912; DK 98950019 T 19980910; EP 98950019 A 19980910; ES 98950019 T 19980910; PT 98950019 T 19980910